sensors Mode-S transponder

A3C145

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N341CP · operated by TEXTRON AVIATION INC

Hex
A3C145
Octal
50740505
Decimal
10,731,845
Country
US
Tail
N341CP
No current signal · last broadcast 1d ago
Flights observed
64
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A3C145.

Country allocation

The ICAO 24-bit address A3C145 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
CAP850 - 64 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-04 CAP850 - Jun 4, 15:15 UTCJun 4, 15:55 UTC40m
2026-06-04 CAP850 - Jun 4, 13:35 UTCJun 4, 14:30 UTC55m
2026-05-31 CAP850 - May 31, 23:10 UTCMay 31, 23:20 UTC10m
2026-05-30 CAP850 - May 30, 13:20 UTCMay 30, 14:15 UTC55m
2026-05-29 CAP850 - May 29, 15:50 UTCMay 29, 16:15 UTC25m
2026-05-28 CAP850 - May 28, 19:25 UTCMay 28, 19:40 UTC15m
2026-05-22 CAP850 - May 22, 13:10 UTCMay 22, 13:30 UTC20m
2026-05-10 CAP850 - May 10, 21:25 UTCMay 10, 22:05 UTC40m
2026-05-10 CAP850 FMY → FMY May 10, 20:05 UTCMay 10, 20:35 UTC30m
2026-05-10 CAP850 - May 10, 18:29 UTCMay 10, 19:05 UTC35m
2026-05-10 CAP850 - May 10, 17:05 UTCMay 10, 17:30 UTC25m
2026-05-10 CAP850 - May 10, 15:39 UTCMay 10, 16:20 UTC40m
2026-05-10 CAP850 - May 10, 12:44 UTCMay 10, 14:04 UTC1h 20m
2026-05-09 CAP850 FMY → FMY May 9, 22:30 UTCMay 10, 00:00 UTC1h 30m
2026-05-09 CAP850 - May 9, 21:05 UTCMay 9, 21:25 UTC20m
2026-05-09 CAP850 - May 9, 19:14 UTCMay 9, 20:20 UTC1h 5m
2026-05-09 CAP850 - May 9, 17:40 UTCMay 9, 18:20 UTC40m
2026-05-09 CAP850 - May 9, 12:40 UTCMay 9, 14:05 UTC1h 25m
2026-05-09 CAP850 - May 9, 10:40 UTCMay 9, 11:10 UTC30m
2026-05-08 CAP850 FMY → FMY May 8, 22:35 UTCMay 8, 23:15 UTC40m
2026-05-08 CAP850 - May 8, 21:35 UTCMay 8, 22:05 UTC30m
2026-05-08 CAP850 - May 8, 20:00 UTCMay 8, 20:30 UTC30m
2026-05-08 CAP850 - May 8, 18:55 UTCMay 8, 19:25 UTC30m
2026-05-08 CAP850 - May 8, 15:00 UTCMay 8, 16:25 UTC1h 25m
2026-05-08 CAP850 - May 8, 13:25 UTCMay 8, 14:20 UTC55m
2026-05-07 CAP850 - May 7, 23:19 UTCMay 7, 23:49 UTC30m
2026-05-07 CAP850 - May 7, 22:10 UTCMay 7, 22:35 UTC25m
2026-05-07 CAP850 - May 7, 17:50 UTCMay 7, 19:05 UTC1h 15m
2026-05-07 CAP850 - May 7, 16:35 UTCMay 7, 16:55 UTC20m
2026-05-07 CAP850 - May 7, 00:10 UTCMay 7, 00:35 UTC25m
2026-05-06 CAP850 - May 6, 22:55 UTCMay 6, 23:35 UTC40m
2026-05-06 CAP850 - May 6, 21:45 UTCMay 6, 22:10 UTC25m
2026-05-06 CAP850 - May 6, 20:00 UTCMay 6, 21:00 UTC1h 0m
2026-05-06 CAP850 - May 6, 16:45 UTCMay 6, 17:50 UTC1h 4m
2026-05-06 CAP850 - May 6, 14:25 UTCMay 6, 15:30 UTC1h 5m
2026-05-05 CAP850 - May 5, 22:30 UTCMay 5, 23:00 UTC30m
2026-05-05 CAP850 - May 5, 20:20 UTCMay 5, 21:05 UTC45m
2026-05-03 CAP850 - May 3, 22:05 UTCMay 3, 23:35 UTC1h 30m
2026-05-03 CAP850 - May 3, 18:30 UTCMay 3, 19:15 UTC45m
2026-05-02 CAP850 - May 2, 15:00 UTCMay 2, 15:20 UTC20m
2026-05-02 CAP850 SEF → ISM May 2, 12:10 UTCMay 2, 12:40 UTC30m
2026-04-29 CAP850 - Apr 29, 17:40 UTCApr 29, 18:10 UTC30m
2026-04-29 CAP850 - Apr 29, 16:10 UTCApr 29, 16:30 UTC20m
2026-04-29 CAP850 - Apr 29, 13:30 UTCApr 29, 14:00 UTC30m
2026-04-28 CAP850 - Apr 28, 19:05 UTCApr 28, 19:15 UTC10m
2026-04-28 CAP850 - Apr 28, 18:45 UTCApr 28, 19:00 UTC15m
2026-04-28 CAP850 - Apr 28, 16:30 UTCApr 28, 17:20 UTC50m
2026-04-28 CAP850 - Apr 28, 14:20 UTCApr 28, 14:40 UTC20m
2026-04-27 CAP850 - Apr 27, 23:25 UTCApr 27, 23:40 UTC15m
2026-04-27 CAP850 - Apr 27, 21:25 UTCApr 27, 22:55 UTC1h 30m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N341CP page for operator, model, and routing details .

Mode-S A3C145 frequently asked

What is Mode-S code A3C145?
A3C145 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N341CP.
Where is Mode-S A3C145 registered?
Mode-S code A3C145 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is A3C145 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C145, octal 50740505, decimal 10,731,845.
What flights does A3C145 operate?
Mode-S A3C145 has broadcast 1 distinct callsign, including CAP850.